Superheating steam-coil



(No Model.)

H.G.P0TTER. SUPERHEATING STEAM CGIL.

No. 500,242. Patented June 27, 1893.

Wiflle s s e 5- vSTATES PATENT twice.

HOWARD C. POTTER, OF BROCKTON, ASSIGNOR TO CHARLES F. ATHERTON,

. OF BOSTON, MASSACHUSETTS.

SUPERH EATING STEAM-COIL.

SPECIFICATION forming part of Letters Patent No. 500,242, dated T une 27, 1893.

Application filed October 22, 1892. Serial No. 449,609. (No model.)

I To all whom t may concern:

Be it known that I, HOWARD C. POTTER, a citizen of the United States, residing at Brockton, in the county of Pymouth and State of superheating steam coils and has for its ob-l ject to produce a simple, cheap, strong and r easily manufactured coil in which the number of joints required in its construction are greatly reduced from those now in common use, thereby both cheapening the construction of the coil and lessening its liability to leak.

It consists in providing the coil with a casting having passages through it with which the ends of the pipe or pipes forming the coil proper are in open communication and to which they are attached. One of the passages in the casting forms the inlet to the coil and has a steam supply pipe in open communication with it, which pipe supplies steam to the coil. A second passage forms the exhaust from the coil and has an exhaust pipe in open communication with it which pipe conveys the superheated steam from the coil to the place where it is to be used. -rIhis second passage contains a wellor receptacle to receive the water of condensation from the coil when it is cooling and any sediment which may enter the coil with the steam, preventing such from entering tlie exhaust pipe. The well or receptacle hasablow-oft' pipe in open communication with it so as to be able t blow oft or discharge any condensation or sediment which may collect in the well or receptacle.

The invention further consistsin the peculiar construction of the exhaust passage in the casting, whereby the sedimentis effectually prevented from being blown with the superheated steam through this passage and into the exhaust pipe connected thereto.

The invention is carried out as follows,.ref 5o' erence being had to the accompanying drawings, whereonor sediment from the coil is given a down- Figure l represents a plan view of my improved coiland Fig. 2 represents a sectional side elevation of the same.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

A represents the coil proper, which may be of any of the common and well known constructions, but I have shown it on the drawings as made of a single pipe bent into the desired shape as I consider such construction preferable, there being the least number of joints in its construction. However,I lay no claim to the peculiar construction of the coil propel'. The ends of the coil A are attached to' the casting B, its upper end being in open communication with the inlet passage b in the casting and its lower end being in open communication with the outlet pas- 7o sage in the casting, which latter passage is formed with a downward extending arm b and an upward extending arm b2. A well or receptacle, o3 is formed in the outlet passage in the casting at the junction of the two arms of said passage, thus forming a continuous outward passage through the casting. By the use of the downward extending arm in the outlet passage as shown all condensation ward impulse into the receptacle b3 thus depositing it within said receptacle and effectually preventing the liabilityof carrying it upward through the arm b2 of the outlet passage and into the exhaust or discharge pipe c, which is attached to the casting in open communication with the upper end of the outlet passage so as to convey the superheated steam from the coil to the place where it is to be used. A steam supply pipe d is attached to the casting in open communication with the inlet passage b which pipe supplies the coil A with steam.

In order to discharge or blow off any and all condensation or sediment which may collect within the well or receptacle bsIprovide sai d receptacle with an outlet b4 through which the condensation or sediment is discharged into a pipe d whenever a valve in said pipe is open, which valve however is not shown on the drawings. Thus it will be seen that by the use of the casting B made in one piece IOO .and containing the inlet passage, the outlet passage and the well or receptacle for the condensation or sediment in the place of making them in separate pieces and connecting them by the necessary fittings, I dispense with a number of joints and also the consequent liability to leakage. I also make a firmer coil than if it were made in the commonand well known manner.

I do not wish to confine myself to the exact form of the casting B as it will be necessary to vary it to suit the different kindsof coils used in connection therewith and also the different places in which it is to -be used; neither do I wish to confine myself to the use of any particular kind of coil proper A, as there are many now in common use which will accomplish the desired result equal to that shown on the drawings.

Havingthus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claim- 1. In a superheating coil, an inlet passage, an outlet passage, a wel] or receptacle within the outlet passage to receive the water ot' condensation, or the sediment from the coil, and an outlet orifice from the well or receptacle,

all contained within a single casting for the purpose set forth.

2. In a superheating coil, an inlet passage, an outlet passage, a Well or receptacle within the outlet passage to receive the water of condensation, or the sediment from the coil and an outlet orifice from the well or receptacle all contained within a single casting combined with a coil proper having its inlet and outlet ends respectively in open communication with the inlet and outlet passagesin the casting, for the purpose set forth.

3. In a superheating coil a casting containing an outlet passage formed by adownward and an upward extending arm, a well or re cepiacle for the water of condensation or the sediment from the coil located at thejunction of the two arms of the outer passage and an outlet orifice from the'well or receptacle, for the purpose set forth.

In testimony whereof I hereunto set my hand, in the presence of two subscribing witnesses, this 12th day of October, A. D. 1892.

HOWARD C. POTTER.

In presence of- HENRY CHADBOURN, CHARLES W. JONES. 

